US5967535A - Swivel wheel mount - Google Patents

Swivel wheel mount Download PDF

Info

Publication number
US5967535A
US5967535A US08/911,285 US91128597A US5967535A US 5967535 A US5967535 A US 5967535A US 91128597 A US91128597 A US 91128597A US 5967535 A US5967535 A US 5967535A
Authority
US
United States
Prior art keywords
swivel
adapted
housing
mount
wheel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US08/911,285
Inventor
Nathanael Nelson King
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Graco Childrens Products Inc
Original Assignee
Graco Childrens Products Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Graco Childrens Products Inc filed Critical Graco Childrens Products Inc
Priority to US08/911,285 priority Critical patent/US5967535A/en
Application granted granted Critical
Publication of US5967535A publication Critical patent/US5967535A/en
Anticipated expiration legal-status Critical
Application status is Expired - Fee Related legal-status Critical

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00Castors in general; Anti-clogging castors
    • B60B33/0002Castors in general; Anti-clogging castors assembling to the object, e.g. furniture
    • B60B33/0005Castors in general; Anti-clogging castors assembling to the object, e.g. furniture characterised by mounting method
    • B60B33/001Castors in general; Anti-clogging castors assembling to the object, e.g. furniture characterised by mounting method by snapping, clicking or latching in
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00Castors in general; Anti-clogging castors
    • B60B33/0002Castors in general; Anti-clogging castors assembling to the object, e.g. furniture
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00Castors in general; Anti-clogging castors
    • B60B33/0002Castors in general; Anti-clogging castors assembling to the object, e.g. furniture
    • B60B33/0015Castors in general; Anti-clogging castors assembling to the object, e.g. furniture characterised by adaptations made to castor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00Castors in general; Anti-clogging castors
    • B60B33/0002Castors in general; Anti-clogging castors assembling to the object, e.g. furniture
    • B60B33/0015Castors in general; Anti-clogging castors assembling to the object, e.g. furniture characterised by adaptations made to castor
    • B60B33/0021Castors in general; Anti-clogging castors assembling to the object, e.g. furniture characterised by adaptations made to castor in the form of a mounting pin
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00Castors in general; Anti-clogging castors
    • B60B33/0078Castors in general; Anti-clogging castors characterised by details of the wheel braking mechanism
    • B60B33/0086Castors in general; Anti-clogging castors characterised by details of the wheel braking mechanism acting on rim or side portion of tyre
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00Castors in general; Anti-clogging castors
    • B60B33/02Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism
    • B60B33/021Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism combined with braking of castor wheel
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00Castors in general; Anti-clogging castors
    • B60B33/02Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism
    • B60B33/025Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism by using form-fit, e.g. front teeth
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00Castors in general; Anti-clogging castors
    • B60B33/0036Castors in general; Anti-clogging castors characterised by type of wheels
    • B60B33/0039Single wheels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00Castors in general; Anti-clogging castors
    • B60B33/0036Castors in general; Anti-clogging castors characterised by type of wheels
    • B60B33/0042Double or twin wheels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00Castors in general; Anti-clogging castors
    • B60B33/0047Castors in general; Anti-clogging castors characterised by details of the rolling axle
    • B60B33/0049Castors in general; Anti-clogging castors characterised by details of the rolling axle the rolling axle being horizontal
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00Castors in general; Anti-clogging castors
    • B60B33/0047Castors in general; Anti-clogging castors characterised by details of the rolling axle
    • B60B33/0057Castors in general; Anti-clogging castors characterised by details of the rolling axle the rolling axle being offset from swivel axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00Castors in general; Anti-clogging castors
    • B60B33/006Castors in general; Anti-clogging castors characterised by details of the swivel mechanism
    • B60B33/0065Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis
    • B60B33/0068Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis the swivel axis being vertical
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60BVEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00Castors in general; Anti-clogging castors
    • B60B33/006Castors in general; Anti-clogging castors characterised by details of the swivel mechanism
    • B60B33/0065Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis
    • B60B33/0073Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis the swivel axis being symmetrical to wheel or wheels
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T16/00Miscellaneous hardware [e.g., bushing, carpet fastener, caster, door closer, panel hanger, attachable or adjunct handle, hinge, window sash balance, etc.]
    • Y10T16/18Casters
    • Y10T16/195Locked

Abstract

Disclosed is a stroller including a frame member, a swivel mount adapted to receive the frame member, a swivel latch adapted to be received in the swivel mount, a suspension housing including a swivel latch receiving portion, the suspension housing adapted to be attached to the swivel mount, a swivel pin adapted to be received in the frame member, the swivel mount, and the suspension housing, and at least one wheel pivotally attached to the frame member. Also disclosed is a swivel wheel mount assembly, adapted to be mounted to a structure, including a swivel mount adapted to receive a portion of the structure, a swivel latch adapted to be received in the swivel mount, a suspension housing including a swivel latch receiving portion, the suspension housing adapted to be attached to the swivel mount, and a swivel pin adapted to be received in the portion of the structure, the swivel mount, and the suspension housing, wherein the swivel mount assembly is adapted to pivotally attach at least one wheel to the portion of the structure.

Description

BACKGROUND OF THE INVENTION

1. Field of Invention

The present invention relates to a child's stroller (a bassinet, a baby buggy or similar device used to support or transport a person) with wheels which swivel.

2. Description of Related Art

Conventional transporters with swivel wheels suffer from several disadvantages. In the past, wheels were rigidly fixed to the transporters on which they were used. This makes the transporter extremely bulky and very expensive to ship.

Later, wheels became removable. Although this technique reduced bulk, conventional removable swivel wheel attachment mechanisms suffer from several disadvantages. These separately shipped items proved difficult for consumers to attach to the transporter. Attachment required the use of several different tools (screwdrivers, wrenches, etc.), as well as several different types of fasteners (screws, bolts, nuts, etc.). Also, because the consumer was responsible for fastening the swivel wheel to the frame of the transporter, the rigidity of this connection varied from transporter to transporter. Finally, conventional removable swivel wheel attachment mechanisms caused the swivel wheel to be attached, via a fastener, to a wheel mount fastened off of the end of a frame member on the transporter. Thus, these conventional removable swivel wheel attachment mechanisms relied on the rigidity of the wheel mount for the stable support of the swivel wheels. Therefore, the natural rigidity of the frame member on the transporter is not relied upon for the stable support the swivel wheels.

Accordingly, there is a need for an improved transporter (a child's stroller, a bassinet, a baby buggy, or similar device used to support or transport a person) with a swivel wheel mount which is both rigid and easy for the consumer to assemble/replace.

SUMMARY OF THE INVENTION

Accordingly, the present invention is directed to an improved transporter (a child's stroller, a bassinet, a baby buggy, or similar device used to support or transport a person) with a swivel wheel mount which substantially eliminates one or more of the problems or disadvantages found in the prior art.

An object of the present invention is to provide an assembly which improves packing efficiency.

Another objective of the present invention is to provide for easy attachment of the swivel wheels without the use of tools.

Another objective of the present invention is to provide for easy removal of the swivel wheels through the use of simple tools.

Another objective of the present invention is to provide for easy replacement of the swivel wheels and wheel mount components through the use of simple tools and without the use of conventional fasteners.

Another object of the present invention is to allow easy and reliable installation of the swivel wheels.

Another object of the present invention is to accommodate slight differences in manufacturing from unit to unit.

Another object of the present invention is to reduce the cost and complexity of manufacturing the transporter and its various components.

Another object of the invention is to strengthen the connection of the swivel wheels to the transporter.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

To achieve these and other advantages and in accordance with the purpose of the invention, as embodied and broadly described, the invention includes a stroller including a frame member, a swivel mount adapted to receive the frame member, a swivel latch adapted to be received in the swivel mount, a suspension housing including a swivel latch receiving portion, the suspension housing adapted to be attached to the swivel mount, a swivel pin adapted to be received in the frame member, the swivel mount, and the suspension housing, and at least one wheel pivotally attached to the frame member.

In another aspect, the invention includes swivel wheel mount assembly, adapted to be mounted to a structure, including a swivel mount adapted to receive a portion of the structure, a swivel latch adapted to be received in the swivel mount, a suspension housing including a swivel latch receiving portion, the suspension housing adapted to be attached to the swivel mount, and a swivel pin adapted to be received in the portion of the structure, the swivel mount, and the suspension housing, wherein the swivel mount assembly is adapted to pivotally attach at least one wheel to the portion of the structure.

It is to be understood that both the general description above, and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings which are included to provide a further understanding of the invention and constitute a part of this specification, illustrate embodiments of the invention and together with the written description, serve to explain the principles of the invention. In the drawings:

FIG. 1A is a side view of a stroller according to a preferred embodiment of the present invention;

FIG. 1B is an enlarged isometric view of a preferred swivel wheel assembly in accordance with the present invention;

FIG. 2 is an enlarged isometric view of a portion of a preferred swivel wheel assembly in accordance with the present invention;

FIG. 3 is an exploded isometric view of a portion of a preferred swivel wheel assembly in accordance with the present invention;

FIG. 4A is an isometric front view of a preferred swivel mount in accordance with the present invention;

FIG. 4B is an isometric rear view of a preferred swivel mount in accordance with the present invention;

FIG. 4C is a bottom view of a preferred swivel mount in accordance with the present invention;

FIG. 5A is an isometric front view of a preferred swivel latch in accordance with the present invention;

FIG. 5B is an isometric rear view of a preferred swivel latch in accordance with the present invention;

FIG. 5C is a rear view of a preferred swivel latch in accordance with the present invention;

FIG. 6A is a side view of a preferred leading housing in accordance with the present invention;

FIG. 6B is a sectional view of a preferred leading housing in accordance with the present invention taken along line B--B in FIG. 6A;

FIG. 6C is a rear view of a preferred leading housing in accordance with the present invention;

FIG. 6D is a sectional view of a preferred leading housing in accordance with the present invention taken along line D--D in FIG. 6C;

FIG. 7A is an isometric front view of a preferred trailing housing in accordance with the present invention;

FIG. 7B is a side view of a preferred trailing housing in accordance with the present invention;

FIG. 7C is a top view of a preferred trailing housing in accordance with the present invention;

FIG. 7D is a sectional view of a preferred trailing housing in accordance with the present invention taken along line D--D of FIG. 7C;

FIG. 8 is an isometric rear view of a portion of a preferred swivel wheel assembly in accordance with the present invention shown in the locked position;

FIG. 9 is an isometric rear view of a portion of a preferred swivel wheel assembly in accordance with the present invention shown in the unlocked position;

FIG. 10 is an enlarged isometric view of a portion of second preferred swivel wheel assembly in accordance with the present invention;

FIG. 11 is an exploded isometric view of a portion of a second preferred swivel wheel assembly in accordance with the present invention; and

FIG. 12 is an isometric front view of a second preferred trailing housing in accordance with the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

In accordance with the objects of the present invention, the stroller of the present invention includes a frame member, a swivel mount adapted to receive the frame member, a swivel latch adapted to be received in the swivel mount, a suspension housing comprising a swivel latch receiving portion, the suspension housing adapted to be attached to the swivel mount, a swivel pin adapted to be received in the frame member, the swivel mount, and the suspension housing, and at least one wheel pivotally attached to the frame member. For example, FIG. 1A shows a side view of a stroller according to a preferred embodiment of the present invention.

Stroller 1 includes frame 2 and wheels 4. Of course, it should be understood that frame 2 could comprise any appropriate configuration provided that the frame includes an appropriate member for receiving wheels 4. According to a preferred embodiment of the present invention, stroller 1 includes two swivel wheel assemblies 3 attached to the front portion of the stroller. However, it should be understood that swivel wheel assemblies 3 could be attached to both the front and rear of the stroller. Frame 2 and its various components may be constructed of any appropriate rigid material. For example, frame 2 may be constructed of metal or a high-strength plastic. Preferably, frame 2 may be constructed of metal tubing or an injection molded plastic. Finally, although the present invention is shown as a bed-type stroller, the fundamentals of the present invention are equally applicable to a bassinet, a baby buggy, or similar device used to support or transport a person.

FIG. 1B shows an enlarged isometric view of a preferred swivel wheel assembly in accordance with the present invention. As can be seen in this enlarged view, swivel wheel assembly 3 of the present invention is attached to a portion of frame 2. Although the preferred swivel wheel assembly in accordance with the present invention is shown with two wheels, it should be understood that a swivel wheel assembly with a single wheel could also be utilized.

FIG. 2 shows an enlarged isometric view of a portion of a preferred swivel wheel assembly in accordance with the present invention. The swivel wheel assembly 3 of the present invention includes swivel wheel mounting assembly 200, swivel wheel mount 210, swivel pin 220, swivel latch 230, suspension housing 240, and wheel axle 270. The suspension housing of the stroller according to the present invention comprises a leading housing and a trailing housing. For example, as shown in FIG. 2, suspension housing 240 is made up of leading housing 250 and trailing housing 260.

The swivel mount of the preferred stroller according to the present invention includes first and second bores, wherein the second bore is adapted to receive an end of the frame member and the swivel latch. For example, as shown in FIG. 3, swivel mount 210 is adapted to receive a swivel pin 220 through a first bore, and an end of frame 2 and swivel latch 230 in a second bore. Swivel pin 220 is adapted to pass through transverse bore 5 of frame 2. Swivel bushing 300 is adapted to be sandwiched between swivel mount 210 and leading housing 250. Swivel bushing 300 may be constructed of any appropriate rigid, friction resistant material, preferably a high-strength plastic, and more preferably an injection-molded plastic. Trailing housing 260 is attached to leading housing 250 via suspension housing pin 310 and sleeve 320. Suspension spring 330 is received between leading housing 250 and trailing housing 260. Wheel 4 is attached to trailing housing 260 via wheel axle 270.

The swivel mount of the preferred stroller according to the present invention includes first and second bores, the first bore extending completely through the swivel mount and the second bore extending at least partially through the swivel mount, wherein the second bore is perpendicular to the first bore and is adapted to receive an end of the frame member and the swivel latch. For example, as shown in FIG. 4A, swivel mount 210 includes first bore 410, second bore 420, latch tab receiving holes 430, and swivel pin recess portion 440. Second bore 420 includes raised ridges 422 and 424 to provide a snug fit for an end of frame 2. Swivel mount 210 may be constructed of any appropriate rigid material, preferably a high-strength plastic, and more preferably an injection-molded plastic.

The swivel mount of the preferred stroller according to the present invention includes swivel latch engaging tabs to engage the swivel latch in an open position and a locked position, wherein in the locked position, a swivel latch receiving portion of the suspension housing receives the swivel latch. For example, FIG. 4B shows swivel latch receiving recess 450, as well as swivel latch engaging tabs 460 and 470. First swivel latch engaging tab 460 comprises a triangular cantilevered portion extending from a lower portion of swivel mount 210, while second swivel latch engaging tab 470 comprises a triangular cantilevered portion extending from a upper portion of swivel mount 210. Swivel latch engaging tabs 460 and 470 each further comprise rectangular projections for engaging a rear surface of swivel latch 230. Although swivel latch engaging tabs 460 and 470 are shown as triangular, it should be understood that the are adapted to cooperate with a rear surface of the swivel latch and could comprise any geometry which facilitates engagement of the swivel latch in locked and unlocked positions.

FIG. 4C is a bottom view of a preferred swivel mount in accordance with the present invention. The rectangular projections of swivel latch engaging tabs 460 and 470 can be clearly seen in this bottom view. Bottom swivel surface 480 is adapted to abut swivel bushing 300, while recess 490 is adapted to receive a top portion of leading housing 250. Opening 495 is adapted to receive a lock projection of swivel latch 230 (see FIGS. 8 and 9).

FIG. 5A shows an isometric front view of a preferred swivel latch in accordance with the present invention. Swivel latch 230 includes front face 510, lock projection 520, arms 530, rotation tabs 540, and button 550. Front face 510 is designed to be flush mounted within swivel latch receiving recess 450 of swivel mount 210, while rotation tabs 540 are adapted to be received in latch tab receiving holes 430 of swivel mount 210. Swivel latch 230 may be constructed of any appropriate rigid material, preferably a high-strength plastic, and more preferably an injection-molded plastic.

FIG. 5B shows an isometric rear view of a preferred swivel latch in accordance with the present invention, while FIG. 5C shows a rear view of a preferred swivel latch in accordance with the present invention. As can be seen most clearly in FIGS. 5B and 5C, swivel latch 230 further comprises a rear engaging projection 560 which is adapted to cooperate with swivel latch engaging tabs 460 and 470 to facilitate engagement of the swivel latch in locked and unlocked positions.

FIG. 6A shows a side view of a preferred leading housing in accordance with the present invention. Leading housing 250 comprises top swivel surface 610 and suspension pin bore 640. Top swivel surface 610 is adapted to abut swivel bushing 300. Leading housing 250 may be constructed of any appropriate rigid material, preferably a high-strength plastic, and more preferably an injection-molded plastic.

FIG. 6B shows a sectional view of a preferred leading housing in accordance with the present invention taken along line B-B in FIG. 6A. Leading housing 250 further comprises swivel latch receiving portion 620 and swivel pin receiving tabs 630. Swivel latch receiving portion 620 is adapted to receive lock projection 520 of swivel latch 230 in the locked position. Swivel pin receiving tabs 630 are designed to engage the bottom of swivel pin 220 so that the consumer may attach swivel wheel assembly 3 to stroller 1 without the use of tools or conventional fasteners.

FIG. 6C shows a rear view of a preferred leading housing in accordance with the present invention. FIG. 6C shows top swivel surface 610, swivel latch receiving portion 620, and swivel pin receiving tabs 630.

FIG. 6D shows a sectional view of a preferred leading housing in accordance with the present invention taken along line D--D in FIG. 6C. FIG. 6D shows top swivel surface 610, swivel pin receiving tabs 630, suspension pin bore 640, swivel pin receiving bore 650, spring receiving recess 660, and spring receiving tab 670. When assembled, suspension spring 330 is seated on spring receiving tab 670 and extends at an angle into spring receiving recess 660. Suspension pin bore 640 is adapted to receive suspension housing pin 310 and sleeve 320.

The trailing housing of the preferred stroller according to the present invention includes an over-drafted axle bore adapted to allow the wheel to be semi-rigidly attached to the suspension housing. For example, as shown in FIG. 7A, trailing housing 260 includes over-drafted axle bore 720. Trailing housing 260 also includes suspension pin receiving bore 710, rear portion 730, and side portions 740 and 750. FIG. 7B more clearly shows over-drafted axle bore 720. Trailing housing 260 may be constructed of any appropriate rigid material, preferably a high-strength plastic, and more preferably an injection-molded plastic.

FIG. 7C shows a top view of a preferred trailing housing in accordance with the present invention. This figure clearly shows spring cross hairs 760. While one end of suspension spring 330 is seated on spring receiving tab 670 of leading housing 250, the opposite end of suspension spring 330 is seated on spring cross hairs 760 of trailing housing 260.

FIG. 7D shows a sectional view of a preferred trailing housing in accordance with the present invention taken along line D--D of FIG. 7C. Over-drafted axle bore 720 is most clearly shown in this figure. The bore 720 is over-drafted toward the bottom of trailing housing 260 and tapers toward a center circular portion 770. This configuration, an axle bore over-drafted in one direction and tapering to a circular configuration in the middle of trailing housing 260 provides several advantages. This design allows the wheel axle 270 to rock back and forth across center circular portion 770 which allows the stroller to move more smoothly across uneven surfaces and improves handling. Furthermore, this configuration compensates for slight variances (due to manufacturing tolerances) in the location of transverse bore 5 of frame 2. Thus, if transverse bore 5 is not truly vertical, the ability of the wheel axle 270 to rock back and forth across center circular portion 770 will still allow both wheels 4 of a single swivel wheel assembly 3 to lie flat on the ground.

Now, the locking and unlocking of the swivel function of swivel wheel assembly 3 will be described in detail with reference to FIGS. 8 and 9.

FIG. 8 shows an isometric rear view of a portion of a preferred swivel wheel assembly in accordance with the present invention shown in the locked position. To lock the swiveling function, the swivel wheel assembly 3 must be rotated about swivel pin 220 until swivel latch receiving portion 620 of leading housing 250 is aligned with lock projection 520. In this position, swivel latch button 550 can then be moved in direction A. This movement causes lock projection 520 to engage swivel latch receiving portion 620 of leading housing 250 and thus swiveling of swivel wheel assembly 3 about swivel pin 220 is prevented. Swivel latch 230 is held in this locked position by swivel latch engaging tabs 460 and 470 until enough force is applied to swivel latch button 550 to overcome the spring bias of swivel latch engaging tabs 460 and 470.

FIG. 9 shows an isometric rear view of a portion of a preferred swivel wheel assembly in accordance with the present invention shown in the unlocked position. To unlock the swiveling function, swivel latch button 550 must be moved in direction B. This movement causes lock projection 520 to disengage from swivel latch receiving portion 620 of leading housing 250 and thus swiveling of swivel wheel assembly 3 about swivel pin 220 is enabled. Swivel latch 230 is held in this unlocked position by swivel latch engaging tabs 460 and 470 until enough force is applied to swivel latch button 550 to overcome the spring bias of swivel latch engaging tabs 460 and 470. Note that whether in the locked or unlocked position, swivel latch front face 510 remains flush with the surface of swivel mount 210.

The wheel of the preferred stroller according to the present invention includes rotation prevention tabs (i.e. a cog wheel). Furthermore, the preferred stroller according to the present invention includes a wheel rotation brake lever adapted to be attached to the trailing housing and adapted to engage the wheel rotation prevention tabs to prevent rolling of the stroller. For example, FIG. 10 shows an enlarged isometric view of a portion of second preferred swivel wheel assembly in accordance with the present invention. This swivel wheel assembly includes wheel rotation prevention tabs 1010, wheel rotation brake lever 1020, brake lever projections 1030, and braking trailing housing 1040. When the distal end of wheel rotation brake lever 1020 is pushed downward, brake lever projections 1030 engage wheel rotation prevention tabs 1010 on wheel 4 to prevent the rolling of the stroller. When the distal end of wheel rotation brake lever 1020 is pulled upward, brake lever projections 1030 disengage from wheel rotation prevention tabs 1010 on wheel 4 and the rolling of the stroller is enabled. Wheel rotation prevention tabs 1010, wheel rotation brake lever 1020, brake lever projections 1030, and braking trailing housing 1040 may be constructed of any appropriate rigid material, preferably a high-strength plastic, and more preferably an injection-molded plastic.

FIG. 11 is an exploded isometric view of a portion of a second preferred swivel wheel assembly in accordance with the present invention. Swivel mount 210 is adapted to receive a swivel pin 220 through a first bore, and an end of frame 2 and swivel latch 230 in a second bore. Swivel pin 220 is adapted to pass through transverse bore 5 of frame 2 (not shown in FIG. 11). Swivel bushing 300 (not shown in FIG. 11) is adapted to be sandwiched between swivel mount 210 and leading housing 250. Braking trailing housing 1040 is attached to leading housing 250 via suspension housing pin 310 and sleeve 320. Suspension spring 330 is received between leading housing 250 and braking trailing housing 1040. Wheel 4 is attached to braking trailing housing 1040 via wheel axle 270. Wheel rotation brake lever 1020 is attached to braking trailing housing 1040 via brake pin 1110. Brake pin 1110 passes through brake pin receiving bores 1120 and 1180 to hold wheel rotation brake lever 1020 in place. Brake lever tabs 1190 are received in brake tab receiving holes 1130. Furthermore, metal support braces 1150 are inserted in receiving slots within braking trailing housing 1040 (see FIG. 12). Metal support braces 1150 comprise suspension pin receiving holes 1140, axle receiving holes 1160, and brake pin receiving holes 1170. In operation, wheel rotation brake lever 1020 is held in locked and unlocked position via the positive interaction of brake lever tabs 1190 with brake tab receiving holes 1130.

Braking trailing housing 1040 is shown in greater detail in FIG. 12. Braking trailing housing 1040 includes rear portion 1210, side portions 1220 and 1230, rear extensions 1240, and spring cross hairs 1250. As can be seen in this Fig., metal support braces 1150 are inserted in receiving slots within braking trailing housing 1040 to provide the increased structural rigidity necessary to support the operation of wheel rotation brake lever 1020.

It will be apparent to those skilled in the art that various modifications and variations can be made in the stroller and swivel wheel mount assembly of the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

Claims (20)

What is claimed is:
1. A stroller comprising:
a frame member;
a swivel mount adapted to receive said frame member;
a swivel latch adapted to be received in said swivel mount;
a suspension housing comprising a swivel latch receiving portion, said suspension housing adapted to be attached to said swivel mount;
a swivel pin adapted to be received in said frame member, said swivel mount, and said suspension housing; and
at least one wheel pivotally attached to said frame member.
2. The stroller of claim 1, wherein said frame member defines a bore extending transversely therethrough.
3. The stroller of claim 2, wherein said swivel mount defines first and second bores, said first bore extending completely through said swivel mount and said second bore extending at least partially through said swivel mount, wherein said second bore is perpendicular to said first bore and is adapted to receive an end of said frame member and said swivel latch.
4. The stroller of claim 3, wherein said swivel mount further comprises swivel latch engaging tabs to engage said swivel latch in an open position and a locked position, wherein in the locked position, said swivel latch receiving portion of said suspension housing receives said swivel latch.
5. The stroller of claim 3, wherein said suspension housing further comprises a swivel pin receiving portion.
6. The stroller of claim 5, wherein said swivel pin is adapted to be received in said frame member transverse bore, said first bore of said swivel mount, and said swivel pin receiving portion of said suspension housing.
7. The stroller of claim 1, wherein said suspension housing further comprises a leading housing and a trailing housing.
8. The stroller of claim 7, wherein said suspension housing further comprises a spring received between said leading housing and said trailing housing.
9. The stroller of claim 7, wherein said trailing housing defines an over-drafted axle bore adapted to receive an axle.
10. The stroller of claim 7, wherein said at least one wheel comprises rotation prevention tabs.
11. The stroller of claim 10, further comprising a wheel rotation brake lever adapted to be attached to said trailing housing and adapted to engage said wheel rotation prevention tabs to prevent rolling of the stroller.
12. A swivel wheel mount assembly, adapted to be mounted to a structure, comprising:
a swivel mount adapted to receive a portion of the structure;
a swivel latch adapted to be received in said swivel mount;
a suspension housing comprising a swivel latch receiving portion, said suspension housing adapted to be attached to said swivel mount; and
a swivel pin adapted to be received in said portion of the structure, said swivel mount, and said suspension housing, wherein the swivel mount assembly is adapted to pivotally attach at least one wheel to said portion of the structure.
13. The swivel wheel mount assembly of claim 12, wherein said swivel mount defines first and second bores, said first bore extending completely through said swivel mount and said second bore extending at least partially through said swivel mount, wherein said second bore is perpendicular to said first bore and is adapted to receive said portion of the structure and said swivel latch.
14. The swivel wheel mount assembly of claim 13, wherein said swivel mount further comprises swivel latch engaging tabs to engage said swivel latch in an open position and a locked position, wherein in the locked position, said swivel latch receiving portion of said suspension housing receives said swivel latch.
15. The swivel wheel mount assembly of claim 13, wherein said suspension housing further comprises a swivel pin receiving portion.
16. The swivel wheel mount assembly of claim 15, wherein said swivel pin is adapted to be received in a transverse bore in said portion of the structure, said first bore of said swivel mount, and said swivel pin receiving portion of said suspension housing.
17. The swivel wheel mount assembly of claim 11, wherein said suspension housing further comprises a leading housing and a trailing housing.
18. The swivel wheel mount assembly of claim 17, wherein said suspension housing further comprises a spring received between said leading housing and said trailing housing.
19. The swivel wheel mount assembly of claim 17, wherein said trailing housing defines an over-drafted axle bore adapted to receive an axle.
20. The swivel wheel mount assembly of claim 17, further comprising a wheel rotation brake lever adapted to be attached to said trailing housing and adapted to prevent rolling of the structure.
US08/911,285 1997-08-14 1997-08-14 Swivel wheel mount Expired - Fee Related US5967535A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US08/911,285 US5967535A (en) 1997-08-14 1997-08-14 Swivel wheel mount

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
US08/911,285 US5967535A (en) 1997-08-14 1997-08-14 Swivel wheel mount
GB9817688A GB2328151B (en) 1997-08-14 1998-08-13 Swivel wheel assembly for a stroller
ITMI981898 IT1302024B1 (en) 1997-08-14 1998-08-14 Frames for caster.
NL1009872A NL1009872C1 (en) 1997-08-14 1998-08-14 Baby Stroller.
DE1998137001 DE19837001A1 (en) 1997-08-14 1998-08-14 Fastening device for castors or swivel wheels of strollers and similar facilities
CA 2245034 CA2245034A1 (en) 1997-08-14 1998-08-14 A swivel wheel mount
FR9810421A FR2767297B1 (en) 1997-08-14 1998-08-14 baby carriage and set a swivel wheel
AU79996/98A AU732350B2 (en) 1997-08-14 1998-08-14 A swivel wheel mount
CN 98119937 CN1209402A (en) 1997-08-14 1998-08-14 Swivel wheel mount
TW87213472U TW391382U (en) 1997-08-14 1998-09-24 Swivel wheel mount

Publications (1)

Publication Number Publication Date
US5967535A true US5967535A (en) 1999-10-19

Family

ID=25430032

Family Applications (1)

Application Number Title Priority Date Filing Date
US08/911,285 Expired - Fee Related US5967535A (en) 1997-08-14 1997-08-14 Swivel wheel mount

Country Status (10)

Country Link
US (1) US5967535A (en)
CN (1) CN1209402A (en)
AU (1) AU732350B2 (en)
CA (1) CA2245034A1 (en)
DE (1) DE19837001A1 (en)
FR (1) FR2767297B1 (en)
GB (1) GB2328151B (en)
IT (1) IT1302024B1 (en)
NL (1) NL1009872C1 (en)
TW (1) TW391382U (en)

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6260867B1 (en) * 1999-07-07 2001-07-17 Link Treasure Limited Child walker
US6443468B1 (en) 2000-09-28 2002-09-03 Evenflo Company, Inc. Stroller assembly having a wheel brake
US6449801B1 (en) 2000-12-04 2002-09-17 Greg R. Durrin Add-on front wheel castors for jogging stroller
US20020190492A1 (en) * 2001-06-15 2002-12-19 Strong Russell W. Integrated wheel suspension system
US20030163892A1 (en) * 2000-09-08 2003-09-04 Roland Kausemann Caster
US6725501B2 (en) 2002-07-31 2004-04-27 Fki Industries, Inc. Caster with universal mount and swivel and wheel lock
NL1023789C2 (en) 2003-07-01 2005-01-04 Bugaboo Design And Sales B V Pram with spring-loaded wheel, spring-loaded wheel as well as spring-loaded caster wheel.
US20050241890A1 (en) * 2004-04-30 2005-11-03 Shun-Min Chen Brake assembly for a stroller
US20060138736A1 (en) * 2002-10-21 2006-06-29 Under Par Pty Ltd Suspension assembly
GB2425942A (en) * 2005-05-12 2006-11-15 Yi-Cheng Tan Castor swivel-limiting device for a stroller
US20060279070A1 (en) * 2005-06-09 2006-12-14 Link Treasure Limited Wheel assembly for baby stroller
US20070007739A1 (en) * 2005-07-09 2007-01-11 Bailey Eric S Steerable Carriage Apparatus
US20070013168A1 (en) * 2005-07-12 2007-01-18 Link Treasure Limited Wheel steering mechanism for baby stroller
US20070257457A1 (en) * 2006-04-03 2007-11-08 Graco Children's Products Inc. Stroller Wheel Suspension
US20080211206A1 (en) * 2007-02-19 2008-09-04 Thorne Henry F Stroller
US20090267325A1 (en) * 2008-04-25 2009-10-29 Michael Cavins Collapsible stroller
US20100044164A1 (en) * 2007-02-19 2010-02-25 Thorley Industries, Llc Braking System for a Stroller
CN103129313A (en) * 2011-11-24 2013-06-05 宝钜儿童用品香港股份有限公司 High chair and wheel set thereof
JP2013241181A (en) * 2010-10-08 2013-12-05 Wonderland Nurserygoods Hong Kong Co Ltd Wheel assembly for infant carrier apparatus
US20150102573A1 (en) * 2013-10-15 2015-04-16 Samsonite IP Holdings S.ar.I. Luggage article with cantilevered wheel bracket having elongated arms
US9333823B2 (en) 2013-12-23 2016-05-10 Hossein Shahroodi Gravitationally aligning wheels
USD756055S1 (en) 2015-02-11 2016-05-10 Delk Resources, Inc. Hand hydraulic floor jack
US9603764B2 (en) 2014-02-11 2017-03-28 Medline Industries, Inc. Method and apparatus for a locking caster
USD811090S1 (en) 2016-06-27 2018-02-27 Samsonite Ip Holdings S.A R.L. Luggage wheel housing with a wheel
US9988065B2 (en) * 2015-08-20 2018-06-05 Wonderland Switzerland Ag Suspension system for absorbing a shock load and stroller therewith

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6332240B1 (en) * 1999-08-05 2001-12-25 Tsai Mei Wu Wheel assembly for a baby walker or stroller

Citations (97)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US225335A (en) * 1880-03-09 Furniture-caster
US309273A (en) * 1884-12-16 Furniture-caster
US350333A (en) * 1886-10-05 Stove
US490424A (en) * 1893-01-24 Samson chambers
US539080A (en) * 1895-05-14 Tongue-support
US813438A (en) * 1905-05-26 1906-02-27 Harry Landis Stove-leg caster.
US920673A (en) * 1909-01-08 1909-05-04 James Sharon Adjustable caster.
US950545A (en) * 1909-07-07 1910-03-01 Kny Scheerer Company Caster for operating-tables.
US953492A (en) * 1909-11-17 1910-03-29 James Sharon Mounting for caster-wheels.
US1092808A (en) * 1913-05-16 1914-04-07 Valentine C Alexander Stove-leg caster.
US1489672A (en) * 1922-04-18 1924-04-08 John Y Robertson Insectproof caster
US1531979A (en) * 1922-04-18 1925-03-31 John Y Robertson Caster
US1614894A (en) * 1925-05-22 1927-01-18 Syracuse Washing Machine Corp Caster mounting
US1630421A (en) * 1921-09-21 1927-05-31 Thomas A George Mowing-machine-tongue support
US1671774A (en) * 1923-05-09 1928-05-29 Mcintosh Burtnett Caster
US1861919A (en) * 1929-09-18 1932-06-07 Milton C Hill Caster construction
US2096239A (en) * 1935-05-02 1937-10-19 Gen Motors Corp Caster having an inclined axis
US2253824A (en) * 1939-02-03 1941-08-26 Townsend Charles Ralph Caster for application to vehicles
US2263717A (en) * 1938-03-31 1941-11-25 Cleveland Pneumatic Tool Co Landing wheel mounting for aircraft
US2271304A (en) * 1940-01-08 1942-01-27 George K Mulholland Trailer unit
US2345442A (en) * 1942-03-17 1944-03-28 Walter A Winter Locking caster
US2376001A (en) * 1944-12-02 1945-05-15 James E Nogle Equalizing trailer hitch
US2458922A (en) * 1944-09-27 1949-01-11 Andresen Ella Veil Caster
US2484189A (en) * 1944-07-26 1949-10-11 Shepherd George Frederick Caster
US2507980A (en) * 1947-08-18 1950-05-16 Walter H Knapp Independent wheel suspension
US2539108A (en) * 1947-09-10 1951-01-23 Shepherd George Frederick Caster
US2543948A (en) * 1946-01-16 1951-03-06 Edward L Wiedman Spring caster
US2707795A (en) * 1951-07-28 1955-05-10 Faultless Caster Corp Spring caster
US2728936A (en) * 1949-10-31 1956-01-03 Hodges Res & Dev Co Caster with swivel lock
US2738542A (en) * 1952-04-21 1956-03-20 Harry I Clark Shock absorbing caster
US2774313A (en) * 1955-11-14 1956-12-18 Ezio L Lombi Ravioli machine
US2891764A (en) * 1956-07-13 1959-06-23 Frank S Pearne Jack structure supported by spring mounted wheels
US2915776A (en) * 1956-06-05 1959-12-08 Fairbanks Company Adjustable spring-loaded caster
US2923961A (en) * 1960-02-09 black
US2942290A (en) * 1957-05-14 1960-06-28 George J Segal Self-locking caster
US3040371A (en) * 1960-07-28 1962-06-26 Albert E Rice Casters
US3054135A (en) * 1958-12-12 1962-09-18 Shepherd George Frederick Casters
US3060488A (en) * 1961-06-05 1962-10-30 Faultless Caster Corp Sealed caster construction
US3066950A (en) * 1961-06-23 1962-12-04 Lockheed Aircraft Corp Cargo tie-down and suspension apparatus
US3075232A (en) * 1961-01-16 1963-01-29 Ford A Rice Caster
US3075231A (en) * 1960-12-16 1963-01-29 Albert E Rice Casters
US3124922A (en) * 1964-03-17 Caster wheel for a side delivery rake
US3128495A (en) * 1961-06-26 1964-04-14 Flexello Castors & Wheeles Ltd Sockets for castors
US3176340A (en) * 1961-12-28 1965-04-06 Stewart Warner Corp Caster device
US3177516A (en) * 1961-05-25 1965-04-13 Shepherd Casters Inc Tilted axle caster
US3235901A (en) * 1962-10-02 1966-02-22 Albert E Rice Caster
US3366201A (en) * 1966-05-05 1968-01-30 John W. Pesta Wheel lock
US3518714A (en) * 1968-11-13 1970-07-07 Modern Caster Co Inc Caster apparatus with swivel dampening brakes
US3623575A (en) * 1968-12-31 1971-11-30 Schiltigheim Atel Reunis Self-locking wheel
US3670361A (en) * 1969-11-15 1972-06-20 Joseph Gillott & Sons Ltd Castors
US3675269A (en) * 1970-04-02 1972-07-11 Super Caster Corp Tilted roller caster
US3690415A (en) * 1970-11-04 1972-09-12 Nordskog Co Inc Wheel lock assembly
US3967342A (en) * 1975-01-13 1976-07-06 Gerico, Inc. Suspended swivel wheel arrangement for baby carriages and the like
US3977040A (en) * 1975-02-27 1976-08-31 Sugatsune Industrial Co., Ltd. Castor
US3991434A (en) * 1974-08-08 1976-11-16 Global Castors And Hardware Limited Ball castor
DE2638877A1 (en) * 1975-09-01 1977-03-31 Boerje Gabrielsson Elastic mounting for fixed castor - uses elastically mounted sleeve inside castor to locate axle with vibration insulation
US4120071A (en) * 1976-05-17 1978-10-17 Stewart-Warner Corporation Dual wheel caster
US4144617A (en) * 1976-12-07 1979-03-20 Herder N.V. Tilted axle caster
US4229856A (en) * 1977-09-21 1980-10-28 Lamondine S.A. Wheel support arrangements
US4282628A (en) * 1977-10-25 1981-08-11 Herder N.V. Tilted axle caster
US4351084A (en) * 1979-10-22 1982-09-28 Stewart-Warner Corporation Soft tread caster wheel and method of making same
US4392668A (en) * 1980-12-09 1983-07-12 Mulholland Lawrence K Shock-absorbing wheel suspension assembly
US4467496A (en) * 1980-11-10 1984-08-28 Wheel Developments Limited Heavy duty polymeric spring member and combination of spring and castor construction
US4483042A (en) * 1981-09-21 1984-11-20 Peg Perego-Pines Deutschland Gmbh Locking device for trailing wheels of a wheeled carriage
US4491335A (en) * 1981-04-10 1985-01-01 Amos Evron Infants' carriages
US4543685A (en) * 1983-07-22 1985-10-01 Kassai Kabushikikaisha Caster
US4567964A (en) * 1983-07-08 1986-02-04 Kassai Kabushikikaisha Wheel stopping device
US4570288A (en) * 1983-12-13 1986-02-18 Kassai Kabushikikaisha Spring supported caster having a disengageable swivel lock
US4575896A (en) * 1980-12-25 1986-03-18 Combi Co., Ltd. Caster with an oscillation stopping mechanism
US4608729A (en) * 1984-10-29 1986-09-02 Huang Yung H Lockable steering structure having a vertically slidable locking block
US4618033A (en) * 1984-12-06 1986-10-21 Aprica Kassai Kabushikikaisha Wheel stopping device
US4637093A (en) * 1983-12-01 1987-01-20 Aprica Kassai Kabushikikaisha Spring cushioned caster having a spring biased locking member
US4649596A (en) * 1983-07-21 1987-03-17 Aprica Kassai Kabushikikaisha Caster
US4681192A (en) * 1983-10-27 1987-07-21 Global Castors Limited Dual-wheel casters with positive lock mechanism
US4714141A (en) * 1985-09-24 1987-12-22 Aprica Kassai Kabushikikaisha Baby carriage wheel stopping device
US4731899A (en) * 1986-07-18 1988-03-22 Huang Yung Ho Rotary roller set directional control device
US4759098A (en) * 1986-11-17 1988-07-26 Hong-Fu Zun Direction setting device for rollers of a baby walker
US4773124A (en) * 1986-08-29 1988-09-27 Combi Co., Ltd. Caster stopper mechanism for a baby carriage
US4793021A (en) * 1984-10-17 1988-12-27 Illinois Tool Works, Inc. Molded caster pintle with high strength core
US4805259A (en) * 1986-10-17 1989-02-21 Aprica Kassai Kabushikikaisha Caster
US4911269A (en) * 1988-12-02 1990-03-27 Shepherd Products Limited Twin wheel caster with integral brake assembly
US4913452A (en) * 1989-06-05 1990-04-03 Zun Hong Fu Caster-supporting device for a baby stroller
US4941552A (en) * 1987-10-21 1990-07-17 Colson Castors (Europe) Limited Castor with brake mechanism
US4953667A (en) * 1988-05-26 1990-09-04 Ampafrance Wheel braking device, particularly for a baby carriage
US5040265A (en) * 1988-11-22 1991-08-20 Herok-Rjk Limited Castors
US5083341A (en) * 1989-09-11 1992-01-28 Tente-Rollen Gmbh & Co. Twin caster, particularly a steering caster
US5144717A (en) * 1991-04-26 1992-09-08 Graco Metal Products, Inc. Double wheel caster for being rotatably mounted on a leg of a transport carrier
US5172451A (en) * 1991-12-06 1992-12-22 Sunshon Molding Co., Ltd. Front caster device for infant stroller
US5191675A (en) * 1990-09-27 1993-03-09 Combi Corporation Caster mechanism for carriage
US5191674A (en) * 1992-02-06 1993-03-09 Zun Hong Fu Direction setting device for a stroller
US5215356A (en) * 1992-10-20 1993-06-01 Lin Kuo Liang Wheel assembly for a baby carriage
US5224961A (en) * 1992-05-29 1993-07-06 Liu Kun Hei Baby carriage wheel mounting device
US5234226A (en) * 1992-08-20 1993-08-10 Liu Kun Hei Baby stroller front wheel frame assembly
US5277480A (en) * 1992-12-28 1994-01-11 Sunshon Molding Co., Ltd. Wheel unit for a baby carriage
US5303449A (en) * 1992-09-03 1994-04-19 Albion Industries, Inc. Thread inhibiting caster assembly
US5351364A (en) * 1993-12-21 1994-10-04 Zun Hong Fu Caster-supporting device for a stroller
US5408723A (en) * 1992-02-21 1995-04-25 Graco Children's Products, Inc. Swivel wheel assembly

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2168891A (en) * 1984-12-28 1986-07-02 Ho Huang Young Lockable steering structure
US4847945A (en) * 1988-05-16 1989-07-18 Dorel Industries, Inc. Dismantlable wheel attachment mechanism with swivel joint protector
US5390394A (en) * 1993-09-30 1995-02-21 Huang; Ming T. Detachable front wheel assembly for a stroller

Patent Citations (97)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2923961A (en) * 1960-02-09 black
US309273A (en) * 1884-12-16 Furniture-caster
US350333A (en) * 1886-10-05 Stove
US490424A (en) * 1893-01-24 Samson chambers
US539080A (en) * 1895-05-14 Tongue-support
US225335A (en) * 1880-03-09 Furniture-caster
US3124922A (en) * 1964-03-17 Caster wheel for a side delivery rake
US813438A (en) * 1905-05-26 1906-02-27 Harry Landis Stove-leg caster.
US920673A (en) * 1909-01-08 1909-05-04 James Sharon Adjustable caster.
US950545A (en) * 1909-07-07 1910-03-01 Kny Scheerer Company Caster for operating-tables.
US953492A (en) * 1909-11-17 1910-03-29 James Sharon Mounting for caster-wheels.
US1092808A (en) * 1913-05-16 1914-04-07 Valentine C Alexander Stove-leg caster.
US1630421A (en) * 1921-09-21 1927-05-31 Thomas A George Mowing-machine-tongue support
US1531979A (en) * 1922-04-18 1925-03-31 John Y Robertson Caster
US1489672A (en) * 1922-04-18 1924-04-08 John Y Robertson Insectproof caster
US1671774A (en) * 1923-05-09 1928-05-29 Mcintosh Burtnett Caster
US1614894A (en) * 1925-05-22 1927-01-18 Syracuse Washing Machine Corp Caster mounting
US1861919A (en) * 1929-09-18 1932-06-07 Milton C Hill Caster construction
US2096239A (en) * 1935-05-02 1937-10-19 Gen Motors Corp Caster having an inclined axis
US2263717A (en) * 1938-03-31 1941-11-25 Cleveland Pneumatic Tool Co Landing wheel mounting for aircraft
US2253824A (en) * 1939-02-03 1941-08-26 Townsend Charles Ralph Caster for application to vehicles
US2271304A (en) * 1940-01-08 1942-01-27 George K Mulholland Trailer unit
US2345442A (en) * 1942-03-17 1944-03-28 Walter A Winter Locking caster
US2484189A (en) * 1944-07-26 1949-10-11 Shepherd George Frederick Caster
US2458922A (en) * 1944-09-27 1949-01-11 Andresen Ella Veil Caster
US2376001A (en) * 1944-12-02 1945-05-15 James E Nogle Equalizing trailer hitch
US2543948A (en) * 1946-01-16 1951-03-06 Edward L Wiedman Spring caster
US2507980A (en) * 1947-08-18 1950-05-16 Walter H Knapp Independent wheel suspension
US2539108A (en) * 1947-09-10 1951-01-23 Shepherd George Frederick Caster
US2728936A (en) * 1949-10-31 1956-01-03 Hodges Res & Dev Co Caster with swivel lock
US2707795A (en) * 1951-07-28 1955-05-10 Faultless Caster Corp Spring caster
US2738542A (en) * 1952-04-21 1956-03-20 Harry I Clark Shock absorbing caster
US2774313A (en) * 1955-11-14 1956-12-18 Ezio L Lombi Ravioli machine
US2915776A (en) * 1956-06-05 1959-12-08 Fairbanks Company Adjustable spring-loaded caster
US2891764A (en) * 1956-07-13 1959-06-23 Frank S Pearne Jack structure supported by spring mounted wheels
US2942290A (en) * 1957-05-14 1960-06-28 George J Segal Self-locking caster
US3054135A (en) * 1958-12-12 1962-09-18 Shepherd George Frederick Casters
US3040371A (en) * 1960-07-28 1962-06-26 Albert E Rice Casters
US3075231A (en) * 1960-12-16 1963-01-29 Albert E Rice Casters
US3075232A (en) * 1961-01-16 1963-01-29 Ford A Rice Caster
US3177516A (en) * 1961-05-25 1965-04-13 Shepherd Casters Inc Tilted axle caster
US3060488A (en) * 1961-06-05 1962-10-30 Faultless Caster Corp Sealed caster construction
US3066950A (en) * 1961-06-23 1962-12-04 Lockheed Aircraft Corp Cargo tie-down and suspension apparatus
US3128495A (en) * 1961-06-26 1964-04-14 Flexello Castors & Wheeles Ltd Sockets for castors
US3176340A (en) * 1961-12-28 1965-04-06 Stewart Warner Corp Caster device
US3235901A (en) * 1962-10-02 1966-02-22 Albert E Rice Caster
US3366201A (en) * 1966-05-05 1968-01-30 John W. Pesta Wheel lock
US3518714A (en) * 1968-11-13 1970-07-07 Modern Caster Co Inc Caster apparatus with swivel dampening brakes
US3623575A (en) * 1968-12-31 1971-11-30 Schiltigheim Atel Reunis Self-locking wheel
US3670361A (en) * 1969-11-15 1972-06-20 Joseph Gillott & Sons Ltd Castors
US3675269A (en) * 1970-04-02 1972-07-11 Super Caster Corp Tilted roller caster
US3690415A (en) * 1970-11-04 1972-09-12 Nordskog Co Inc Wheel lock assembly
US3991434A (en) * 1974-08-08 1976-11-16 Global Castors And Hardware Limited Ball castor
US3967342A (en) * 1975-01-13 1976-07-06 Gerico, Inc. Suspended swivel wheel arrangement for baby carriages and the like
US3977040A (en) * 1975-02-27 1976-08-31 Sugatsune Industrial Co., Ltd. Castor
DE2638877A1 (en) * 1975-09-01 1977-03-31 Boerje Gabrielsson Elastic mounting for fixed castor - uses elastically mounted sleeve inside castor to locate axle with vibration insulation
US4120071A (en) * 1976-05-17 1978-10-17 Stewart-Warner Corporation Dual wheel caster
US4144617A (en) * 1976-12-07 1979-03-20 Herder N.V. Tilted axle caster
US4229856A (en) * 1977-09-21 1980-10-28 Lamondine S.A. Wheel support arrangements
US4282628A (en) * 1977-10-25 1981-08-11 Herder N.V. Tilted axle caster
US4351084A (en) * 1979-10-22 1982-09-28 Stewart-Warner Corporation Soft tread caster wheel and method of making same
US4467496A (en) * 1980-11-10 1984-08-28 Wheel Developments Limited Heavy duty polymeric spring member and combination of spring and castor construction
US4392668A (en) * 1980-12-09 1983-07-12 Mulholland Lawrence K Shock-absorbing wheel suspension assembly
US4575896A (en) * 1980-12-25 1986-03-18 Combi Co., Ltd. Caster with an oscillation stopping mechanism
US4491335A (en) * 1981-04-10 1985-01-01 Amos Evron Infants' carriages
US4483042A (en) * 1981-09-21 1984-11-20 Peg Perego-Pines Deutschland Gmbh Locking device for trailing wheels of a wheeled carriage
US4567964A (en) * 1983-07-08 1986-02-04 Kassai Kabushikikaisha Wheel stopping device
US4649596A (en) * 1983-07-21 1987-03-17 Aprica Kassai Kabushikikaisha Caster
US4543685A (en) * 1983-07-22 1985-10-01 Kassai Kabushikikaisha Caster
US4681192A (en) * 1983-10-27 1987-07-21 Global Castors Limited Dual-wheel casters with positive lock mechanism
US4637093A (en) * 1983-12-01 1987-01-20 Aprica Kassai Kabushikikaisha Spring cushioned caster having a spring biased locking member
US4570288A (en) * 1983-12-13 1986-02-18 Kassai Kabushikikaisha Spring supported caster having a disengageable swivel lock
US4793021A (en) * 1984-10-17 1988-12-27 Illinois Tool Works, Inc. Molded caster pintle with high strength core
US4608729A (en) * 1984-10-29 1986-09-02 Huang Yung H Lockable steering structure having a vertically slidable locking block
US4618033A (en) * 1984-12-06 1986-10-21 Aprica Kassai Kabushikikaisha Wheel stopping device
US4714141A (en) * 1985-09-24 1987-12-22 Aprica Kassai Kabushikikaisha Baby carriage wheel stopping device
US4731899A (en) * 1986-07-18 1988-03-22 Huang Yung Ho Rotary roller set directional control device
US4773124A (en) * 1986-08-29 1988-09-27 Combi Co., Ltd. Caster stopper mechanism for a baby carriage
US4805259A (en) * 1986-10-17 1989-02-21 Aprica Kassai Kabushikikaisha Caster
US4759098A (en) * 1986-11-17 1988-07-26 Hong-Fu Zun Direction setting device for rollers of a baby walker
US4941552A (en) * 1987-10-21 1990-07-17 Colson Castors (Europe) Limited Castor with brake mechanism
US4953667A (en) * 1988-05-26 1990-09-04 Ampafrance Wheel braking device, particularly for a baby carriage
US5040265A (en) * 1988-11-22 1991-08-20 Herok-Rjk Limited Castors
US4911269A (en) * 1988-12-02 1990-03-27 Shepherd Products Limited Twin wheel caster with integral brake assembly
US4913452A (en) * 1989-06-05 1990-04-03 Zun Hong Fu Caster-supporting device for a baby stroller
US5083341A (en) * 1989-09-11 1992-01-28 Tente-Rollen Gmbh & Co. Twin caster, particularly a steering caster
US5191675A (en) * 1990-09-27 1993-03-09 Combi Corporation Caster mechanism for carriage
US5144717A (en) * 1991-04-26 1992-09-08 Graco Metal Products, Inc. Double wheel caster for being rotatably mounted on a leg of a transport carrier
US5172451A (en) * 1991-12-06 1992-12-22 Sunshon Molding Co., Ltd. Front caster device for infant stroller
US5191674A (en) * 1992-02-06 1993-03-09 Zun Hong Fu Direction setting device for a stroller
US5408723A (en) * 1992-02-21 1995-04-25 Graco Children's Products, Inc. Swivel wheel assembly
US5224961A (en) * 1992-05-29 1993-07-06 Liu Kun Hei Baby carriage wheel mounting device
US5234226A (en) * 1992-08-20 1993-08-10 Liu Kun Hei Baby stroller front wheel frame assembly
US5303449A (en) * 1992-09-03 1994-04-19 Albion Industries, Inc. Thread inhibiting caster assembly
US5215356A (en) * 1992-10-20 1993-06-01 Lin Kuo Liang Wheel assembly for a baby carriage
US5277480A (en) * 1992-12-28 1994-01-11 Sunshon Molding Co., Ltd. Wheel unit for a baby carriage
US5351364A (en) * 1993-12-21 1994-10-04 Zun Hong Fu Caster-supporting device for a stroller

Cited By (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6260867B1 (en) * 1999-07-07 2001-07-17 Link Treasure Limited Child walker
US6839938B2 (en) * 2000-09-08 2005-01-11 Rhombus Rollen Gmbh & Co. Caster
US20030163892A1 (en) * 2000-09-08 2003-09-04 Roland Kausemann Caster
US6443468B1 (en) 2000-09-28 2002-09-03 Evenflo Company, Inc. Stroller assembly having a wheel brake
US6449801B1 (en) 2000-12-04 2002-09-17 Greg R. Durrin Add-on front wheel castors for jogging stroller
US20020190492A1 (en) * 2001-06-15 2002-12-19 Strong Russell W. Integrated wheel suspension system
US6789810B2 (en) * 2001-06-15 2004-09-14 Russell W. Strong Integrated wheel suspension system
US6725501B2 (en) 2002-07-31 2004-04-27 Fki Industries, Inc. Caster with universal mount and swivel and wheel lock
US20060138736A1 (en) * 2002-10-21 2006-06-29 Under Par Pty Ltd Suspension assembly
NL1023789C2 (en) 2003-07-01 2005-01-04 Bugaboo Design And Sales B V Pram with spring-loaded wheel, spring-loaded wheel as well as spring-loaded caster wheel.
US20060237930A1 (en) * 2003-07-01 2006-10-26 Royalty Bugaboo Gmbh Child buggy with wheel with suspension, wheel with suspension and swivel wheel with suspension
US7497449B2 (en) 2003-07-01 2009-03-03 Royalty Bugaboo Gmbh Child buggy with wheel with suspension, wheel with suspension and swivel wheel with suspension
WO2005002882A1 (en) 2003-07-01 2005-01-13 Royalty Bugaboo Gmbh Child buggy with wheel with suspension, wheel with suspension and swivel wheel with suspension
JP2007521175A (en) * 2003-07-01 2007-08-02 ロイヤルティ・ブガボー・ゲーエムベーハー Child carrier with suspension, wheel with suspension and swivel wheel with suspension
US20050241890A1 (en) * 2004-04-30 2005-11-03 Shun-Min Chen Brake assembly for a stroller
US7059452B2 (en) * 2004-04-30 2006-06-13 Wonderland Nurserygoods Co., Ltd. Brake assembly for a stroller
GB2425942A (en) * 2005-05-12 2006-11-15 Yi-Cheng Tan Castor swivel-limiting device for a stroller
US20060279070A1 (en) * 2005-06-09 2006-12-14 Link Treasure Limited Wheel assembly for baby stroller
US20070007739A1 (en) * 2005-07-09 2007-01-11 Bailey Eric S Steerable Carriage Apparatus
US20070013168A1 (en) * 2005-07-12 2007-01-18 Link Treasure Limited Wheel steering mechanism for baby stroller
US20070257457A1 (en) * 2006-04-03 2007-11-08 Graco Children's Products Inc. Stroller Wheel Suspension
US7770905B2 (en) * 2006-04-03 2010-08-10 Graco Children's Products Inc. Stroller wheel suspension
US8585076B2 (en) 2007-02-19 2013-11-19 Thorley Industries Llc Power folding stroller having manual override system
US20100044164A1 (en) * 2007-02-19 2010-02-25 Thorley Industries, Llc Braking System for a Stroller
US9731745B2 (en) 2007-02-19 2017-08-15 Thorley Industries Llc Power folding stroller having multiple motors
US20080211206A1 (en) * 2007-02-19 2008-09-04 Thorne Henry F Stroller
US20110218712A1 (en) * 2007-02-19 2011-09-08 Thorley Industries, Llc Stroller With Integrated Child Sensor
US8193650B2 (en) 2007-02-19 2012-06-05 Thorley Industries Llc Power generation system for a stroller
US8215808B2 (en) 2007-02-19 2012-07-10 Thorley Industries Llc Lighting system for a stroller
US8894091B2 (en) 2007-02-19 2014-11-25 Thorley Industries Llc Stroller with frame position sensor
US8499898B2 (en) 2007-02-19 2013-08-06 Thorley Industries Llc Braking system for a stroller
US8500152B2 (en) 2007-02-19 2013-08-06 Thorley Industries Llc Collapsible stroller
US20110215553A1 (en) * 2007-02-19 2011-09-08 Thorley Industries, Llc Power Folding Stroller Having Multiple Motors
US20090267325A1 (en) * 2008-04-25 2009-10-29 Michael Cavins Collapsible stroller
US8733785B2 (en) 2008-09-05 2014-05-27 Thorley Industries Llc Collapsible stroller
JP2013241181A (en) * 2010-10-08 2013-12-05 Wonderland Nurserygoods Hong Kong Co Ltd Wheel assembly for infant carrier apparatus
CN103129313A (en) * 2011-11-24 2013-06-05 宝钜儿童用品香港股份有限公司 High chair and wheel set thereof
CN103129313B (en) * 2011-11-24 2015-05-20 宝钜儿童用品香港股份有限公司 High chair and wheel set thereof
US20150102573A1 (en) * 2013-10-15 2015-04-16 Samsonite IP Holdings S.ar.I. Luggage article with cantilevered wheel bracket having elongated arms
US9636948B2 (en) * 2013-10-15 2017-05-02 Samsonite Ip Holdings S.A.R.L. Luggage article with cantilevered wheel bracket having elongated arms
US9333823B2 (en) 2013-12-23 2016-05-10 Hossein Shahroodi Gravitationally aligning wheels
US9603764B2 (en) 2014-02-11 2017-03-28 Medline Industries, Inc. Method and apparatus for a locking caster
US9993378B2 (en) 2014-02-11 2018-06-12 Medline Industries, Inc. Method and apparatus for a locking caster
USD756055S1 (en) 2015-02-11 2016-05-10 Delk Resources, Inc. Hand hydraulic floor jack
US9988065B2 (en) * 2015-08-20 2018-06-05 Wonderland Switzerland Ag Suspension system for absorbing a shock load and stroller therewith
USD848740S1 (en) 2016-06-27 2019-05-21 Samsonite Ip Holdings S.A R.L. Luggage wheel
USD841330S1 (en) 2016-06-27 2019-02-26 Samsonite Ip Holdings S.A R.L. Luggage wheel fork with a wheel
USD841331S1 (en) 2016-06-27 2019-02-26 Samsonite Ip Holdings S.A R.L. Luggage wheel fork with a wheel
USD841332S1 (en) 2016-06-27 2019-02-26 Samsonite Ip Holdings S.A R.L. Luggage wheel fork with a wheel
USD811090S1 (en) 2016-06-27 2018-02-27 Samsonite Ip Holdings S.A R.L. Luggage wheel housing with a wheel

Also Published As

Publication number Publication date
DE19837001A1 (en) 1999-03-04
GB9817688D0 (en) 1998-10-07
AU7999698A (en) 1999-03-04
FR2767297B1 (en) 1999-11-05
CA2245034A1 (en) 1999-02-14
ITMI981898A1 (en) 2000-02-14
CN1209402A (en) 1999-03-03
ITMI981898D0 (en) 1998-08-14
GB2328151B (en) 2001-03-21
FR2767297A1 (en) 1999-02-19
TW391382U (en) 2000-05-21
IT1302024B1 (en) 2000-07-20
AU732350B2 (en) 2001-04-26
GB2328151A (en) 1999-02-17
NL1009872C1 (en) 1999-02-16

Similar Documents

Publication Publication Date Title
US4892338A (en) Plural point door lock and flush-mountable operating mechanism with detent
US5931360A (en) Detachable motorcycle passenger seat and/or luggage rack
US5385387A (en) Child carrier with detachable base
US5445421A (en) Dual throat latch assembly
US6402215B1 (en) Vehicle cargo bed extender
US5924614A (en) Article carrier assembly having a cross rail assembly longitudinally adjustable from one side of a motor vehicle
US6669224B2 (en) Docking assembly
US5440948A (en) Locking hinge for a folding bicycle
US7798515B2 (en) Folding baby stroller system and method
US4640658A (en) Demountable carrier for mounting on vehicles
US4332052A (en) Support assembly for luggage
US6623071B2 (en) Seat fitting structure for motor scooter type vehicle
US5060810A (en) Clamps for load braces
US4948311A (en) Tie down fitting
US6994393B2 (en) Trailer
US6948878B1 (en) Locking quick release device
US6910708B2 (en) One hand pull collapsible stroller
JP3434494B2 (en) Flip-up possible adult seat of the lock mechanism
US6170592B1 (en) Detachable framework for an electric cart
EP2130451B1 (en) Carrying case with locking latch mechanism
US4773123A (en) Automatically extensible and retractable wheel unit for mounting on a corner of a suitcase
US5669663A (en) Quick-action fastening device for a child's seat in a vehicle
US4893850A (en) Opening/closing device
EP0431769B1 (en) Latching mechanism
US20070069504A1 (en) Foldable stroller

Legal Events

Date Code Title Description
REMI Maintenance fee reminder mailed
LAPS Lapse for failure to pay maintenance fees
STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362

FP Expired due to failure to pay maintenance fee

Effective date: 20031019